logger

type Helper struct {
	Logger
	// contains filtered or unexported fields
}

type Level int8

type Logger interface {
	// Init initialises options
	Init(options ...Option) error
	// The Logger options
	Options() Options
	// Fields set fields to always be logged
	Fields(fields map[string]interface{}) Logger
	// Log writes a log entry
	Log(level Level, v ...interface{})
	// Logf writes a formatted log entry
	Logf(level Level, format string, v ...interface{})
	// String returns the name of logger
	String() string
}

type Option func(*Options)

type Options struct {
	// The logging level the logger should log at. default is `InfoLevel`
	Level Level
	// fields to always be logged
	Fields map[string]interface{}
	// It's common to set this to a file, or leave it default which is `os.Stderr`
	Out io.Writer
	// Caller skip frame count for file:line info
	CallerSkipCount int
	// Alternative options
	Context context.Context
}